VE.Bus BMS NG 2. General description The VE.Bus BMS NG is a Battery Management System (BMS) designed specifically for Victron Energy Lithium NG batteries (not to be confused with Lithium Smart batteries without NG designation). These are LiFePO ₄ batteries available in 12,8 V, 25,6 V, and 51,2 V, and in various capacities. The VE.Bus BMS NG is intended to interface with and protect Victron Lithium NG batteries in systems that include a Victron VE.Bus inverter/charger or VE.Bus inverter.
It relies on this connection to perform key functions such as enabling/disabling charge and discharge based on battery conditions Batteries can be connected in series, parallel, or a combination of both to build battery banks suitable for 12 V, 24 V, or 48 V system voltages. For 12 V and 24 V configurations, up to 50 batteries can be used. For 48 V configurations, the maximum is 25 batteries. This results in a maximum storage capacity of: 192 kWh for 12 V systems 384 kWh for 24 V systems 128 kWh for 48 V systems For complete specifications, refer to the Victron Lithium NG battery product page .
Cell-level protection The BMS monitors and protects each individual cell of the connected battery or battery bank. Based on the status signals received from the battery, it will: Trigger a pre-alarm to warn of an imminent cell undervoltage Disconnect or shut down loads if a cell undervoltage condition occurs Turn off the inverter in VE.Bus inverter/chargers or VE.Bus inverters in case of cell undervoltage Reduce charge current if a cell overvoltage or overtemperature is detected in VE.Bus inverter/chargers or VE.Bus inverters Disconnect or shut down chargers in case of cell overvoltage or overtemperature Page 2 General description